1 files changed, 14 insertions, 4 deletions
diff --git a/apkg b/apkg
index e7d7f93..1ab6b7e 100755
--- a/apkg
+++ b/apkg
@@ -891,11 +891,21 @@ options:
   -S <pattern> search files
   -v           be verbose
   -h           print this help message
-  
+
 environment variables:
-  APKG_ROOT          override default root (${APKG_ROOT:-/}) location
-  APKG_NOPROMPT      set the variable for non-interactive use
-  
+  APKG_REPO          space-separated repo directories (required for pkg resolution)
+  APKG_PACKAGE_DIR   directory for built .spm files (default: \$PWD)
+  APKG_SOURCE_DIR    directory for source tarballs (default: \$PWD)
+  APKG_WORK_DIR      directory for build working tree (default: \$PWD)
+  APKG_ROOT          alternative install root (default: /)
+  APKG_NOPROMPT      skip confirmation prompt (for scripting)
+  APKG_KEEP_WORKDIR  keep work directory on build failure
+  APKG_ALIAS         dependency substitution (real:alias pairs)
+  APKG_MASK          packages to skip during -l and -U
+  CFLAGS             C compiler flags (used by cmake build system)
+  CXXFLAGS           C++ compiler flags (used by cmake build system)
+  CROSS_COMPILE      prefix for strip command (e.g. x86_64-linux-musl-)
+
 EOF
 exit 0
 }